Nut-lock.



I. B L PEOK,

LOOK.- APPLIGATIDN FILED 1110.30, 1912.

Patented. Sept. 30, 1913.

ATENT: onnion.

ISAAC -M. PEGK, OF TIFFIN, OHIO, ASSIGNOR OF ONE-HALF 1T0 RALPH MAY, OF

TIFFIN, OHIO.

' nor-noon.

Application filed August 30, 1912. Serial No. 717,905.

To all whom it may concern Be it known. that I, ISAAC M.PECK, a citizen of the United States, residing at Tiflin, in the county of Seneca, State of Ohio, have invented certain new and useful Improvements ,in Nut-Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention is directed. to improvements in nut locks, the same being so constructed that the n'ut will be prevented from becoming accidentally removed from the bolt.

A further object of the invention is to provide a nut lock, which is exceedingly simple in construction and one which may be manufactured at'a minimum cost.

With these and other objects in view, thisv invention resides in the novel features of construction, formations, combinations and arrangements of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawing, in which Figure 1 is a side elevation of the device. Fig. 2 is a top plan View. Fig. 3 is a transverse sectional view through the nut' and bolt,showing the key in elevation. Fig. t is a side elevation of the key.

Referring to the drawing, the numeral 1 designates a bolt, the same being provided along its threaded portion with longitudinal grooves 2. The nut 3 is provided with the usual bolt opening t having opening there into a transverse bore 5 a similar bore 6 being also formed in the nut, the latter bore having its inner end 7' provided with a perforation 8. The nut is further provided upon one side with a straight groove ,9, said groove extending from the outer end of thebore 5 to the inner end -of the bore 6, v The key 10 consists'o'fan arin 11 whiohoperates in the bore6 and has one of its ends'passing through theperforation 8, said end terminating in a lateral extension 11, said extension in turn terminates in a projection 12, which is arranged ,parallel to the arm 11', and operates in the here 5 for engagingthe grooves 2 formed in the bolt 1.

Formed in one side of the nut and diametrically opposite the groove 9 is a beveled groove 13,- the same being for 't he'purpose of receiving the inclined end 14 of the key 10 which is correspondingly inclined to fit the groove 13. Rigidly connected .to the arm 11 and near the end 14 thereof is a sleeve 15, which engages'one end; of acoil spring 16, the other end of which bears against theinner end of the bore 6, said spring surrounding'a portion of the arm 11 and servesto hold the end 14 displaced from the groove 13 andthe projection 12 normally in engagement with one of-the grooves 2 formed in the bolt. Thus it will-be seen that the nut 3 may be threaded upon the bolt in the usual manner, and the projection 12 will engage the grooves of the bolt to prevent reverse rotation of the nut. When it is desired to remove the nut it isonly necessary that the end 14:.be engaged and forced .in the groove 13, whereupon theprojection Patented Sept. 30, 1913. i

bore opening into the bolt'opening,a.'second u bore formed in the nut, aninclined groove formed in one side of the not, a key consistf. :ing of an arm, said arm being operable in' the second named bore,fand :having one of its ends bentfor engagement'in the inclined groove, a sleeve fixed'tothe arm and";held thereon 'bythe bent end i of said arm, a coil spring surroundingja portion of theiarniaand having one ofitsends engaged iby the sleeve,- the other end of said armhaving-a lateral extension which terminates in a projection adapted for operation in the first named bore for engaging the grooves insaid-bolt;

I In testimony whereof I 'ailix -my signature in'presence of witnesses.

ISAAGEMZ PEGK Witnesses :N W-

J. A. RAELPH H; "MAY. 

